40622641 has 2 divisors, whose sum is σ = 40622642. Its totient is φ = 40622640.

The previous prime is 40622597. The next prime is 40622671. The reversal of 40622641 is 14622604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 11029041 = 5440^2 + 3321^2 .

It is a cyclic number.

It is not a de Polignac number, because 40622641 - 2¹³ = 40614449 is a prime.

It is not a weakly prime, because it can be changed into another prime (40622671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20311320 + 20311321.

It is an arithmetic number, because the mean of its divisors is an integer number (20311321).

Almost surely, 2^40622641 is an apocalyptic number.

It is an amenable number.

40622641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40622641 is an equidigital number, since it uses as much as digits as its factorization.

40622641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 40622641 is about 6373.5893341194. The cubic root of 40622641 is about 343.7605627167.

The spelling of 40622641 in words is "forty million, six hundred twenty-two thousand, six hundred forty-one".